This JLG 7019986 starter is a reliable replacement for your boom lift. It is compatible with multiple models including 400S, 450A, and 3394RT. The starter is made by an aftermarket brand and is designed to provide optimal performance for your equipment. It is an essential part for the charging and starting system of your heavy equipment. This starter is suitable for use in various industries and is a must-have for anyone who owns a boom lift.